Patent GB-191418240-A (GB)
Title: Process and Apparatus for Separating the Foremost Thread in the Lease of Textile Warps.
Inventor: WENZEL MAX
IPC: D03J1/14
Filed: 1911-08-01
Granted: 1915-07-08
Abstract: 18,240. Wenzel, M. Aug. 1. Warp threads, uniting.-In separating the foremost thread a<1>, Fig. 10, from a lease of warps formed by leaserods K, K<1>, it is moved forwards in a direction parallel to the leaserods together with the following similarly - disposed threads a<2>, a<3> by a comb c with the first tooth c' longer than the others while the threads b', b<2>, b<3> of the other group are held back by a similar comb d, so that the crossing of the threads b<1>, b<2> with the threads a<2>, a<3> causes the threads a<2>, a<3> to be separated from the thread a', which enters the mouth formed between jaws 50, 51 of a swinging arm 52 and is held by the action of suction nozzles situated in the throat of the mouth and compressed-air nozzles situated in the faces 50<11>, 51". The thread is then seized by a gripping and conveying device 60, Fig. 11, and the arm 52 is swung in the direction of the arrow, the movement of the arm closing rotary valves in the hub of the arm to cut off the action of the suction and compressed-air devices. The comb c is raised to free the threads a<2>, a<3>, which are moved back to the lease by an arm 128, Fig. 2, operated by a spring 131 and a cam-actuated rod 133. The comb c is mounted on a lever 24, 25, Fig. 3, pivoted at 23 to a slide 6, a rod 10 being also pivoted at 23. The comb d is similarly mounted and to its slide is pivoted a rod 11. The rods 10, 11 are reciprocated by bell-crank levers 12, 14 and eccentrics 19, 20. When a comb has been moved to separate a thread, it is raised against the action of a spring 27 by the action on the lever 25 of an adjustable' screw 49 on a lever 40 secured to a rock-shaft 41 operated through a lever and rod by a cam on the driving-shaft 22. When the comb moves back towards the unseparated warps, it falls until it is checked in a mid position by the engagement of the end of a slot in a projection 32 on its lever 24 with a notch 37 in a pawl 34, which is pivoted to the slide and passes through the slot. The comb remains in this position until its long tooth engages the foremost thread, whereupon the pawl 34 is freed from the projection 32 by contacting with an adjustable screw 38, and the comb falls to its lowest position to engage the threads. The combs c, d act in succession to separate a thread and may be arranged to operate above or below or above and below the lease. When a thread is seized by the device 60, it is carried thereby into engagement with a finger 90, Fig. 2, of a chain 82, which is mounted on wheels 83, 84 and is guided so that it moves parallel to the lease-rods at the lower part of its path. The shaft 86 of the wheel 84 is intermittently rotated by ratchet gear, operated by an eccentric on the shaft 22, and is geared to the shaft 21 of the eccentrics 19, 20. The threads are manipulated by warp twisting or knotting apparatus while held by the fingers 90, and at each operation the foremost completed thread is seized by a hook 106 and transferred to a holding- hook 127, these hooks being actuated to cooperate with one another by suitable mechanism.